REG-OSB GROUP PLC - Transaction in Own Shares

OsbAnnouncement

19/02/2026 07:00

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OSB GROUP
PLC                                        
ISIN: GB00BLDRH360
19 February 2026

LEI number: 213800ZBKL9BHSL2K459

OSB GROUP PLC (the “Company”) 
Transaction in Own Shares

The Company announces that on 18 February 2026 it had purchased a total of
69,180 of its ordinary shares of £0.01 each (the "ordinary shares") on the
London Stock Exchange, CBOE BXE and CBOE CXE, through the Company's broker
Citigroup Global Markets Limited as detailed below. The repurchased ordinary
shares will be cancelled.

                                                          London Stock Exchange  CBOE BXE  CBOE CXE  
 Number of ordinary shares purchased                      69,180                 -         -         
 Highest price paid (per ordinary share)                  612.00p                -         -         
 Lowest price paid (per ordinary share)                   604.00p                -         -         
 Volume weighted average price paid (per ordinary share)  607.20p                -         -         

The purchases form part of the Company’s share buyback programme announced
on 13 March 2025.

Following settlement of the above purchases and cancellation of the purchased
ordinary shares, the Company's total number of ordinary shares in issue shall
be 353,358,099 ordinary shares.

No ordinary shares are held in treasury. Therefore, the total number of voting
rights in the Company is 353,358,099.

In accordance with Article 5(1)(b) of Regulation (EU) No 596/2014 as
incorporated into and implemented under English law (including by virtue of
the European Union (Withdrawal) Act 2018), the detailed breakdown of
individual trades made by Citigroup Global Markets Limited on behalf of the
Company as part of the share buyback programme is set out below.

This announcement does not constitute, or form part of, an offer or any
solicitation of an offer for securities in any jurisdiction.

Schedule of Purchases – Individual Transactions

 Issuer Name        OSB GROUP PLC                     
 LEI                213800ZBKL9BHSL2K459              
 ISIN               GB00BLDRH360                      
 Intermediary Name  Citigroup Global Markets Limited  
 Intermediary Code  SBILGB2L                          
 Timezone           GMT+1                             
 Currency           GBP                               



 Transaction Date  Trade Time  Currency  Volume  Price   Trading Venue  Transaction ID  
 18-02-2026        16:25:18    GBp       73      608.00  XLON           xeaMIHArWcm     
 18-02-2026        16:25:18    GBp       176     608.50  XLON           xeaMIHArWct     
 18-02-2026        16:25:18    GBp       303     609.00  XLON           xeaMIHArWc9     
 18-02-2026        16:21:08    GBp       251     608.00  XLON           xeaMIHArjSq     
 18-02-2026        16:21:08    GBp       362     608.50  XLON           xeaMIHArjSs     
 18-02-2026        16:17:53    GBp       176     609.00  XLON           xeaMIHArNDZ     
 18-02-2026        16:16:50    GBp       63      610.50  XLON           xeaMIHArLEY     
 18-02-2026        16:16:50    GBp       658     611.00  XLON           xeaMIHArLEw     
 18-02-2026        16:16:50    GBp       430     612.00  XLON           xeaMIHArLE0     
 18-02-2026        16:16:50    GBp       207     612.00  XLON           xeaMIHArLE@     
 18-02-2026        16:16:48    GBp       732     612.00  XLON           xeaMIHArL9G     
 18-02-2026        16:16:47    GBp       246     612.00  XLON           xeaMIHArL9U     
 18-02-2026        16:16:47    GBp       650     612.00  XLON           xeaMIHArL8W     
 18-02-2026        15:58:42    GBp       424     611.00  XLON           xeaMIHAr8RZ     
 18-02-2026        15:58:16    GBp       221     611.50  XLON           xeaMIHAr96K     
 18-02-2026        15:48:05    GBp       226     611.00  XLON           xeaMIHAsxWw     
 18-02-2026        15:48:05    GBp       3       611.00  XLON           xeaMIHAsxWy     
 18-02-2026        15:47:13    GBp       607     611.00  XLON           xeaMIHAsutb     
 18-02-2026        15:47:13    GBp       22      611.00  XLON           xeaMIHAsutc     
 18-02-2026        15:47:13    GBp       867     611.00  XLON           xeaMIHAsutv     
 18-02-2026        15:47:13    GBp       229     611.00  XLON           xeaMIHAsutx     
 18-02-2026        15:47:13    GBp       274     611.00  XLON           xeaMIHAsutz     
 18-02-2026        15:45:10    GBp       230     610.50  XLON           xeaMIHAsd$0     
 18-02-2026        15:37:13    GBp       194     610.00  XLON           xeaMIHAsgxC     
 18-02-2026        15:37:13    GBp       599     610.00  XLON           xeaMIHAsgxE     
 18-02-2026        15:31:29    GBp       887     609.00  XLON           xeaMIHAsI7e     
 18-02-2026        15:29:50    GBp       260     609.50  XLON           xeaMIHAsGN$     
 18-02-2026        15:29:50    GBp       299     609.50  XLON           xeaMIHAsGN1     
 18-02-2026        15:29:50    GBp       25      609.50  XLON           xeaMIHAsGNv     
 18-02-2026        15:29:50    GBp       603     609.50  XLON           xeaMIHAsGNx     
 18-02-2026        15:29:50    GBp       439     609.50  XLON           xeaMIHAsGNz     
 18-02-2026        15:21:47    GBp       284     608.50  XLON           xeaMIHAs79@     
 18-02-2026        15:21:47    GBp       404     608.50  XLON           xeaMIHAs790     
 18-02-2026        15:20:00    GBp       728     609.00  XLON           xeaMIHAs2xD     
 18-02-2026        15:17:54    GBp       561     609.50  XLON           xeaMIHAs10A     
 18-02-2026        15:15:43    GBp       1,578   609.50  XLON           xeaMIHAsCRj     
 18-02-2026        15:15:43    GBp       547     609.50  XLON           xeaMIHAsCRl     
 18-02-2026        15:15:43    GBp       505     609.50  XLON           xeaMIHAsCRv     
 18-02-2026        15:02:48    GBp       419     609.00  XLON           xeaMIHAtdWs     
 18-02-2026        15:01:41    GBp       622     609.00  XLON           xeaMIHAtaEr     
 18-02-2026        15:00:42    GBp       671     609.50  XLON           xeaMIHAtYde     
 18-02-2026        15:00:42    GBp       149     609.50  XLON           xeaMIHAtYdn     
 18-02-2026        15:00:42    GBp       64      609.50  XLON           xeaMIHAtYdp     
 18-02-2026        15:00:42    GBp       32      609.50  XLON           xeaMIHAtYdr     
 18-02-2026        15:00:37    GBp       584     609.50  XLON           xeaMIHAtYja     
 18-02-2026        15:00:37    GBp       326     609.50  XLON           xeaMIHAtYjc     
 18-02-2026        15:00:37    GBp       281     609.00  XLON           xeaMIHAtYjn     
 18-02-2026        15:00:37    GBp       846     609.00  XLON           xeaMIHAtYjr     
 18-02-2026        15:00:37    GBp       403     610.00  XLON           xeaMIHAtYjy     
 18-02-2026        15:00:37    GBp       90      610.00  XLON           xeaMIHAtYj@     
 18-02-2026        15:00:37    GBp       539     609.50  XLON           xeaMIHAtYj4     
 18-02-2026        14:49:48    GBp       440     610.00  XLON           xeaMIHAtUtT     
 18-02-2026        14:49:48    GBp       210     610.00  XLON           xeaMIHAtUtV     
 18-02-2026        14:49:48    GBp       271     610.00  XLON           xeaMIHAtUsf     
 18-02-2026        14:49:48    GBp       244     610.00  XLON           xeaMIHAtUsh     
 18-02-2026        14:49:48    GBp       57      610.00  XLON           xeaMIHAtUsj     
 18-02-2026        14:42:12    GBp       237     608.50  XLON           xeaMIHAt0vw     
 18-02-2026        14:39:29    GBp       751     607.50  XLON           xeaMIHAtAl5     
 18-02-2026        14:36:26    GBp       344     608.00  XLON           xeaMIHAmq@6     
 18-02-2026        14:33:16    GBp       380     607.00  XLON           xeaMIHAm$1l     
 18-02-2026        14:33:16    GBp       304     607.50  XLON           xeaMIHAm$1m     
 18-02-2026        14:32:41    GBp       551     608.00  XLON           xeaMIHAmyN2     
 18-02-2026        14:31:00    GBp       349     606.00  XLON           xeaMIHAmvhI     
 18-02-2026        14:30:05    GBp       429     606.00  XLON           xeaMIHAmbjR     
 18-02-2026        14:29:46    GBp       669     606.50  XLON           xeaMIHAmYxR     
 18-02-2026        14:25:00    GBp       346     607.00  XLON           xeaMIHAmebM     
 18-02-2026        14:21:07    GBp       188     606.50  XLON           xeaMIHAmJ0K     
 18-02-2026        14:19:20    GBp       596     606.50  XLON           xeaMIHAmVHM     
 18-02-2026        14:19:19    GBp       688     607.00  XLON           xeaMIHAmVIY     
 18-02-2026        14:18:15    GBp       36      607.50  XLON           xeaMIHAmTmM     
 18-02-2026        14:17:05    GBp       350     608.00  XLON           xeaMIHAmQQn     
 18-02-2026        14:17:05    GBp       164     608.00  XLON           xeaMIHAmQQt     
 18-02-2026        14:17:05    GBp       1,263   608.00  XLON           xeaMIHAmQQz     
 18-02-2026        14:14:00    GBp       388     605.50  XLON           xeaMIHAm7QJ     
 18-02-2026        14:03:05    GBp       388     605.50  XLON           xeaMIHAn@gV     
 18-02-2026        13:56:15    GBp       495     605.50  XLON           xeaMIHAna8C     
 18-02-2026        13:55:12    GBp       308     606.50  XLON           xeaMIHAnYaA     
 18-02-2026        13:55:12    GBp       307     606.50  XLON           xeaMIHAnYaC     
 18-02-2026        13:55:12    GBp       99      606.00  XLON           xeaMIHAnYaE     
 18-02-2026        13:55:12    GBp       305     606.00  XLON           xeaMIHAnYaG     
 18-02-2026        13:52:37    GBp       388     606.00  XLON           xeaMIHAnlnD     
 18-02-2026        13:42:58    GBp       576     605.00  XLON           xeaMIHAnHzr     
 18-02-2026        13:41:52    GBp       248     605.50  XLON           xeaMIHAnUE$     
 18-02-2026        13:41:52    GBp       429     605.50  XLON           xeaMIHAnUE6     
 18-02-2026        13:41:52    GBp       470     605.50  XLON           xeaMIHAnUE8     
 18-02-2026        13:41:52    GBp       400     605.50  XLON           xeaMIHAnUEJ     
 18-02-2026        13:41:52    GBp       486     605.50  XLON           xeaMIHAnUEL     
 18-02-2026        13:41:52    GBp       592     605.50  XLON           xeaMIHAnUEM     
 18-02-2026        13:41:52    GBp       1,067   605.50  XLON           xeaMIHAnU9X     
 18-02-2026        13:41:52    GBp       1,310   605.50  XLON           xeaMIHAnU98     
 18-02-2026        13:41:52    GBp       267     605.50  XLON           xeaMIHAnU9A     
 18-02-2026        13:41:52    GBp       305     605.50  XLON           xeaMIHAnU9C     
 18-02-2026        13:41:52    GBp       36      605.50  XLON           xeaMIHAnU9E     
 18-02-2026        13:21:26    GBp       253     604.50  XLON           xeaMIHAoojD     
 18-02-2026        13:21:26    GBp       404     605.00  XLON           xeaMIHAoojF     
 18-02-2026        13:11:30    GBp       176     605.50  XLON           xeaMIHAodmk     
 18-02-2026        13:11:05    GBp       372     605.00  XLON           xeaMIHAod9E     
 18-02-2026        13:11:05    GBp       16      605.00  XLON           xeaMIHAod9G     
 18-02-2026        12:37:52    GBp       431     604.50  XLON           xeaMIHAoRKe     
 18-02-2026        12:37:47    GBp       39      604.50  XLON           xeaMIHAoRGH     
 18-02-2026        12:37:47    GBp       598     605.50  XLON           xeaMIHAoRGM     
 18-02-2026        12:37:47    GBp       388     605.00  XLON           xeaMIHAoRGS     
 18-02-2026        12:16:46    GBp       550     605.50  XLON           xeaMIHAo9L@     
 18-02-2026        12:08:46    GBp       226     604.00  XLON           xeaMIHApmM@     
 18-02-2026        12:08:45    GBp       240     604.50  XLON           xeaMIHApmTy     
 18-02-2026        12:08:45    GBp       338     604.00  XLON           xeaMIHApmSa     
 18-02-2026        12:08:45    GBp       485     604.50  XLON           xeaMIHApmSu     
 18-02-2026        12:02:54    GBp       179     605.50  XLON           xeaMIHApw$b     
 18-02-2026        12:02:54    GBp       305     605.50  XLON           xeaMIHApw$Z     
 18-02-2026        11:59:25    GBp       203     605.50  XLON           xeaMIHApcqQ     
 18-02-2026        11:59:25    GBp       614     605.50  XLON           xeaMIHApcqS     
 18-02-2026        11:56:13    GBp       453     605.50  XLON           xeaMIHApbkZ     
 18-02-2026        11:51:50    GBp       623     605.50  XLON           xeaMIHApXe3     
 18-02-2026        11:51:50    GBp       281     605.50  XLON           xeaMIHApXe5     
 18-02-2026        11:51:50    GBp       291     605.50  XLON           xeaMIHApXe7     
 18-02-2026        11:51:50    GBp       535     605.50  XLON           xeaMIHApXe9     
 18-02-2026        11:44:59    GBp       388     605.00  XLON           xeaMIHApMjK     
 18-02-2026        11:37:31    GBp       757     605.50  XLON           xeaMIHApH0A     
 18-02-2026        11:09:50    GBp       661     604.50  XLON           xeaMIHAispD     
 18-02-2026        11:09:36    GBp       3       605.00  XLON           xeaMIHAis54     
 18-02-2026        11:09:36    GBp       650     605.00  XLON           xeaMIHAis56     
 18-02-2026        11:09:36    GBp       1,676   605.00  XLON           xeaMIHAis4c     
 18-02-2026        11:09:36    GBp       179     605.00  XLON           xeaMIHAis4e     
 18-02-2026        11:09:36    GBp       388     605.00  XLON           xeaMIHAis4n     
 18-02-2026        10:49:02    GBp       273     605.50  XLON           xeaMIHAiYqG     
 18-02-2026        10:38:29    GBp       908     605.00  XLON           xeaMIHAiKQK     
 18-02-2026        10:38:29    GBp       175     605.50  XLON           xeaMIHAiKQQ     
 18-02-2026        10:38:29    GBp       197     605.50  XLON           xeaMIHAiKQS     
 18-02-2026        10:38:29    GBp       650     605.50  XLON           xeaMIHAiKQU     
 18-02-2026        10:18:40    GBp       86      606.00  XLON           xeaMIHAiCcx     
 18-02-2026        10:18:40    GBp       285     606.00  XLON           xeaMIHAiCcz     
 18-02-2026        10:15:43    GBp       68      606.00  XLON           xeaMIHAiAUm     
 18-02-2026        10:15:43    GBp       207     606.00  XLON           xeaMIHAiAUr     
 18-02-2026        10:11:27    GBp       247     605.00  XLON           xeaMIHAjt5J     
 18-02-2026        10:10:48    GBp       175     605.50  XLON           xeaMIHAjqDb     
 18-02-2026        10:10:48    GBp       88      605.50  XLON           xeaMIHAjqDd     
 18-02-2026        10:10:48    GBp       14      605.50  XLON           xeaMIHAjqDZ     
 18-02-2026        10:08:50    GBp       179     605.50  XLON           xeaMIHAjo3F     
 18-02-2026        10:00:00    GBp       398     605.00  XLON           xeaMIHAjah3     
 18-02-2026        09:55:23    GBp       290     605.50  XLON           xeaMIHAjXzu     
 18-02-2026        09:54:22    GBp       268     606.00  XLON           xeaMIHAjlqq     
 18-02-2026        09:54:22    GBp       271     606.00  XLON           xeaMIHAjlqw     
 18-02-2026        09:50:15    GBp       288     606.00  XLON           xeaMIHAjNmL     
 18-02-2026        09:49:45    GBp       269     606.00  XLON           xeaMIHAjKa3     
 18-02-2026        09:49:44    GBp       283     606.50  XLON           xeaMIHAjKdg     
 18-02-2026        09:49:44    GBp       518     606.50  XLON           xeaMIHAjKdm     
 18-02-2026        09:49:44    GBp       66      606.50  XLON           xeaMIHAjKdo     
 18-02-2026        09:49:44    GBp       33      606.50  XLON           xeaMIHAjKdq     
 18-02-2026        09:49:42    GBp       388     606.50  XLON           xeaMIHAjKWw     
 18-02-2026        09:45:24    GBp       285     607.00  XLON           xeaMIHAjGRD     
 18-02-2026        09:40:00    GBp       446     607.00  XLON           xeaMIHAjQJE     
 18-02-2026        09:30:29    GBp       164     606.50  XLON           xeaMIHAj0BW     
 18-02-2026        09:30:29    GBp       310     606.50  XLON           xeaMIHAj0Bc     
 18-02-2026        09:15:21    GBp       385     605.50  XLON           xeaMIHAkpJz     
 18-02-2026        09:11:38    GBp       381     606.00  XLON           xeaMIHAk$wI     
 18-02-2026        09:11:14    GBp       484     606.50  XLON           xeaMIHAk$Ja     
 18-02-2026        09:06:56    GBp       585     606.50  XLON           xeaMIHAkxEt     
 18-02-2026        09:06:55    GBp       388     607.00  XLON           xeaMIHAkx8I     
 18-02-2026        09:00:07    GBp       338     607.00  XLON           xeaMIHAkYyt     
 18-02-2026        09:00:00    GBp       141     608.00  XLON           xeaMIHAkY1c     
 18-02-2026        09:00:00    GBp       200     608.00  XLON           xeaMIHAkY1e     
 18-02-2026        09:00:00    GBp       560     608.00  XLON           xeaMIHAkY1g     
 18-02-2026        09:00:00    GBp       302     608.00  XLON           xeaMIHAkY1i     
 18-02-2026        09:00:00    GBp       388     607.50  XLON           xeaMIHAkY1t     
 18-02-2026        08:56:52    GBp       557     608.00  XLON           xeaMIHAkXpm     
 18-02-2026        08:56:52    GBp       72      608.00  XLON           xeaMIHAkXpo     
 18-02-2026        08:42:36    GBp       275     607.00  XLON           xeaMIHAkInC     
 18-02-2026        08:42:36    GBp       276     607.00  XLON           xeaMIHAkInK     
 18-02-2026        08:42:36    GBp       277     607.00  XLON           xeaMIHAkImb     
 18-02-2026        08:42:36    GBp       266     607.00  XLON           xeaMIHAkImy     
 18-02-2026        08:42:36    GBp       138     607.00  XLON           xeaMIHAkImE     
 18-02-2026        08:42:36    GBp       98      607.00  XLON           xeaMIHAkImG     
 18-02-2026        08:30:30    GBp       167     607.00  XLON           xeaMIHAkOPL     
 18-02-2026        08:23:37    GBp       456     606.00  XLON           xeaMIHAk5VD     
 18-02-2026        08:18:11    GBp       178     606.00  XLON           xeaMIHAk1Qb     
 18-02-2026        08:16:44    GBp       260     605.00  XLON           xeaMIHAkFXW     
 18-02-2026        08:15:32    GBp       262     605.00  XLON           xeaMIHAkFUW     
 18-02-2026        08:13:30    GBp       167     606.00  XLON           xeaMIHAkD2w     
 18-02-2026        08:13:30    GBp       243     606.50  XLON           xeaMIHAkD29     
 18-02-2026        08:12:57    GBp       555     606.00  XLON           xeaMIHAkAem     
 18-02-2026        08:10:50    GBp       173     607.00  XLON           xeaMIHAkBRN     
 18-02-2026        08:10:50    GBp       470     607.00  XLON           xeaMIHAkBRP     
 18-02-2026        08:04:37    GBp       108     604.00  XLON           xeaMIHAlqOm     
 18-02-2026        08:04:37    GBp       27      604.00  XLON           xeaMIHAlqOo     
 18-02-2026        08:04:37    GBp       222     604.00  XLON           xeaMIHAlqOu     
 18-02-2026        08:04:34    GBp       466     604.50  XLON           xeaMIHAlqQ$     
 18-02-2026        08:04:34    GBp       374     605.00  XLON           xeaMIHAlqQI     
 18-02-2026        08:02:58    GBp       113     607.00  XLON           xeaMIHAlo25     
 18-02-2026        08:02:58    GBp       197     606.50  XLON           xeaMIHAlo27